Synthesis and Structure–Activity Relationships of Indazole Arylsulfonamides as Allosteric CC-Chemokine Receptor 4 (CCR4) Antagonists
作者:Panayiotis A. Procopiou、John W. Barrett、Nicholas P. Barton、Malcolm Begg、David Clapham、Royston C. B. Copley、Alison J. Ford、Rebecca H. Graves、David A. Hall、Ashley P. Hancock、Alan P. Hill、Heather Hobbs、Simon T. Hodgson、Coline Jumeaux、Yannick M. L. Lacroix、Afjal H. Miah、Karen M. L. Morriss、Deborah Needham、Emma B. Sheriff、Robert J. Slack、Claire E. Smith、Steven L. Sollis、Hugo Staton
DOI:10.1021/jm301572h
日期:2013.3.14
substituents. Only small groups were tolerated at C5, C6, or C7, with the C6 analogues being preferred. The most potent N3-substituent was 5-chlorothiophene-2-sulfonamide. N1 meta-substituted benzyl groups possessing an α-amino-3-[(methylamino)acyl]– group were the most potent N1-substituents. Strongly basic amino groups had low oral absorption in vivo. Less basic analogues, such as morpholines, had good oral
合成了一系列吲唑芳基磺酰胺,并作为人CCR4拮抗剂进行了研究。含甲氧基或羟基的是更有效的吲唑C4取代基。在C5,C6或C7处只容忍少数人,优选C6类似物。最有效的N 3取代基是5-氯噻吩-2-磺酰胺。具有α-氨基-3-[(甲基氨基)酰基]-基团的N 1间位取代的苄基是最有效的N 1取代基。强碱性氨基在体内的口服吸收率低。诸如吗啉之类的碱性较低的类似物具有良好的口服吸收。但是,它们的间隙也很高。在两个物种中吸收最强的化合物是类似物6(GSK2239633A),已被选择进行进一步开发。芳基磺酰胺拮抗剂在表示为位点II的细胞内变构位点结合CCR4。对两个吲唑磺酰胺片段的X射线衍射研究表明,在活性构象中存在重要的分子内相互作用。